210b864edcf937fa3d9d701a7a1777ebc507e68926c6b130f4f9934581871491

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/03/2025, 22:32

Target

210b864edcf937fa3d9d701a7a1777ebc507e68926c6b130f4f9934581871491.dll
Size

137KB
MD5

dfc8c7ed3b29b01dd58069a8dfc9e698
SHA1

44719b36874e9f6d6e08437df7588ae508f0468b
SHA256

210b864edcf937fa3d9d701a7a1777ebc507e68926c6b130f4f9934581871491
SHA512

af9caed0fc1cdbd5b672017d808c6c92e88a39dd5c1a12daf3f4cc87b7884950c6653d16579d9f77ac813e7d65e5831f65d8e8f06958f4dc0a75f9d1031c3c90
SSDEEP

3072:sR02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUu:Z25GgFny61mra

Score

8^/10

Boot or Logon Autostart Execution: Port Monitors 1 TTPs 2 IoCs

Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

Port Monitors

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\Print\Monitors\SCSI Port Monitor\Driver = "scsimon.dll"	rundll32.exe

Sets service image path in registry 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Spooler\ImagePath = "Spoolsv.exe"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\com\comb.dll	rundll32.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe
File created	C:\Windows\AppPatch\ComBack.Dll	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2420	2028	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

System Language Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 1356 wrote to memory of 2028	1356	rundll32.exe	30
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31
PID 2028 wrote to memory of 2420	2028	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\210b864edcf937fa3d9d701a7a1777ebc507e68926c6b130f4f9934581871491.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\210b864edcf937fa3d9d701a7a1777ebc507e68926c6b130f4f9934581871491.dll,#1
  2⤵
  - Boot or Logon Autostart Execution: Port Monitors
  - Sets service image path in registry
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 228
    3⤵
    - Program crash
    PID:2420